Submission #222941

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
222941	2020-04-14 11:43:11	ngot23	Deda (COCI17_deda)	C++11	0 / 140	1078 ms	5368 KiB

deda

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#include <bits/stdc++.h>
using namespace std;
const int N=200005;
int t[N*4], n, Q, ID[N*4];
void build(int l, int r, int id) {
    if(l==r) {
        ID[l] = id;
        t[id] = 1e9 + 1;
        return;
    }
    int mid=(r+l)>>1;
    build(l, mid, id*2);
    build(mid+1, r, id*2+1);
}
void update(int u, int val) {
    u=ID[u];
    t[u]=val;
    while(u/2!=0) {
        int id=u/2;
        t[id]=min(t[u], t[u^1]);
        u = id;
    }
}
int get(int l, int r, int id, int u, int v) {
    if(v<l || r<u) return int(1e9+1);
    if(u<=l && r<=v) return t[id];
 
 
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Compilation message (stderr)

deda.cpp: In function 'int main()':
deda.cpp:50:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                 int mid=r+l >> 1;
                         ~^~
deda.cpp:37:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     if(fopen(".inp", "r")) freopen(".inp", "r", stdin);
                            ~~~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 140